I see no reason for anxiety for the early adopters and they are all staying within the profitable bracket. The anxiety has probably engulfed the late 2017 adopters.

For them, this is an opportunity period to average out their buying price. But due to their past losses, a majority of them will not invest in bitcoin again. Because their past experience will hold them back. The best remedy for them is to increase their exposure into other less pricy and potential profitable coins. And Instead of talking HODL route dor those altcoins, they must book profits whenever possible. This way they can bring down the percentage of losses from crypto invest. I don't see any other escape route for them as of now.

I think those who have bought bitcoin around 2017 has either dump half in December and made a lot of profits or just holding a few and continue to keep buying in dips. But for much earlier adopter, I don't think that they are affected by this dramatic fall in the price. Holding is more of a mental thing, yes its really though, I guess the best thing to do if you are really a good investors is to long at your investment for long term and I hope that you really invest what you can afford so that you are not that impacted when the price goes down.

Since I assumed to hold bitcoins for long term, I just need to forget about having any money in bitcoins. Even if the price is dropping, I don't care until I the long term I am keeeping it is up

As for me I respect good news for bitcoin. If I read something good about BTC or market generally I calm down.

In my opinion, you just have to be determined to invest. If you're all about investing and not 'fast money' you won't be as worried.  Just believe in bitcoin. It's improving very fast by comparison. I think it has a bright future ahead. 

Whenever the price of Bitcoin or altcoin drops. I regularly spend time researching on ICO projects. Research on ICO projects will make me forget the fear of falling prices. You can try to apply this method of mine

Yes there is. Experience one complete boom and bust cycle and then the next one will feel fine.

Once you've been through one the next one will feel like a breeze. Not only are you likely to still be in the black no matter what the price does, but to observe the exact same emotions, whines and mistakes as the last one will reassure you that the exact same will happen again in the future.

I think they should advise them to look back at Bitcoin's past, look back at the downgrade or look back at the anticipated bitcoin deaths, I think they will no longer be pessimistic.

Why would one want to halt a helping factor in which people could pick a lesson or two? Anxiety often forces people to learn things in order to prevent greater downfall, though at some point most people just give it up. However since investments involve money, it would somehow make the investor think of what other things could they do whilst the price is in a crash. It forces us to think rational and think smart. There's really not much we can do to alleviate that anxiety of theirs TBH, and why should we?

Anxiety is all in the mind. It's based off of unrealistic expectations for something that you made as an illusion from your perception of its attributes. So if the thing isn't what you believed it to be, you start feeling uncomfortable, nervous, or even anxious. But since we cannot directly influence things outside of us to that degree, there's absolutely no reason to be worried about it.

Recognize the things that you can change in your life i.e. your immediate surroundings, and make them better. Then let go of the things you cannot change i.e. politics, markets, etc. and learn to follow them in a way that benefits you.